Description
The FN Five-seveN comes with a metric M10x1 thread at the muzzle. This SilencerCo Delta adapter converts it to the common 1/2×28 thread. An O-ring engagement keeps the threads clean and helps stop a suppressor from working loose. A thread protector is included for when you’re shooting without a can.
Specifications
- Manufacturer part: SilencerCo AC77
- Fits: FN Five-seveN pistol
- Thread: M10x1 (barrel) to 1/2×28
- Material: steel
- Finish: black
- Includes: adapter and thread protector
Important
- The Five-seveN fires 5.7x28mm. Only mount a suppressor that its manufacturer rates for 5.7×28. Most .22 rimfire suppressors are not. Check your suppressor’s caliber rating, or ask us before you buy.






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